The Herschel view of GAS in Protoplanetary Systems (GASPS) First comparisons with a large grid of models

被引：24

作者：

Pinte, C. ^{[1
,2
]}

Woitke, P. ^{[3
,4
,5
]}

Menard, F. ^{[1
]}

Duchene, G. ^{[1
,6
]}

Kamp, I. ^{[7
]}

Meeus, G. ^{[8
]}

Mathews, G. ^{[9
]}

Howard, C. D. ^{[10
]}

Grady, C. A. ^{[11
]}

Thi, W. -F. ^{[1
,3
]}

Tilling, I. ^{[3
]}

Augereau, J. -C. ^{[1
]}

Dent, W. R. F. ^{[12
,13
]}

Alacid, J. M. ^{[14
]}

Andrews, S. ^{[15
]}

Ardila, D. R. ^{[16
]}

Aresu, G. ^{[7
]}

Barrado, D. ^{[17
,18
]}

Brittain, S. ^{[19
]}

Ciardi, D. R. ^{[20
]}

Danchi, W.

Eiroa, C. ^{[8
]}

Fedele, D. ^{[8
,21
,22
]}

de Gregorio-Monsalvo, I. ^{[12
,13
]}

Heras, A. ^{[23
]}

Huelamo, N. ^{[18
]}

Krivov, A. ^{[24
,25
]}

Lebreton, J. ^{[1
]}

Liseau, R. ^{[26
]}

Martin-Zaidi, C. ^{[1
]}

Mendigutia, I. ^{[18
]}

Montesinos, B. ^{[18
]}

Mora, A. ^{[27
]}

Morales-Calderon, M. ^{[28
]}

Nomura, H. ^{[29
]}

Pantin, E. ^{[30
]}

Pascucci, I. ^{[31
]}

Phillips, N. ^{[3
]}

Podio, L. ^{[7
]}

Poelman, D. R. ^{[5
]}

Ramsay, S. ^{[32
]}

Riaz, B. ^{[31
]}

Rice, K. ^{[3
]}

Riviere-Marichalar, P. ^{[18
]}

Roberge, A. ^{[33
]}

Sandell, G. ^{[33
]}

Solano, E. ^{[12
,13
]}

Vandenbussche, B. ^{[34
]}

Walker, H. ^{[35
]}

Williams, J. P. ^{[9
]}

机构：

[1] Univ Grenoble 1, CNRS, Lab Astrophys Grenoble LAOG, UMR 5571, F-38041 Grenoble 09, France

[2] Univ Exeter, Sch Phys, Exeter EX4 4QJ, Devon, England

[3] Univ Edinburgh, Royal Observ, Inst Astron, SUPA, Edinburgh EH9 3HJ, Midlothian, Scotland

[4] Royal Observ, UK Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland

[5] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[6] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[7] Univ Groningen, Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands

[8] Univ Autonoma Madrid, Fac Ciencias, Dep Fis Teor, E-28049 Madrid, Spain

[9] Univ Hawaii Manoa, Inst Astron, Honolulu, HI 96822 USA

[10] NASA, Ames Res Ctr, SOFIA USRA, Moffett Field, CA 94035 USA

[11] NASA, Goddard Space Flight Ctr, Eureka Sci & Exoplanets & Stellar Astrophys Lab, Greenbelt, MD 20771 USA

[12] Joint ALMA Off, ALMA, Santiago, Chile

[13] European So Observ, Santiago 19, Chile

[14] CSIC, INTA, Ctr Astrobiol, Dept Astrofis,Unidad Archivo Datos, Villanueva De La Canada 28691, Spain

[15] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[16] CALTECH, NASA Herschel Sci Ctr, Pasadena, CA 91125 USA

[17] Ctr Astron Hispano Aleman, Calar Alto Observ, Almeria 04004, Spain

[18] CSIC, INTA, Ctr Astrobiol, Dept Astrofis,LAEX, Villanueva De La Canada 28691, Spain

[19] Clemson Univ, Clemson, SC 29631 USA

[20] CALTECH, NASA Exoplanet Sci Inst, Pasadena, CA 91125 USA

[21] Max Planck Inst Astron, D-69117 Heidelberg, Germany

[22] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21210 USA

[23] ESA ESTEC, Res & Sci Support Dept, NL-2200 AG Noordwijk, Netherlands

[24] Univ Jena, Inst Astrophys, D-07745 Jena, Germany

[25] Univ Jena, Univ Sternwarte, D-07745 Jena, Germany

[26] Chalmers, Onsala Space Observ, Dept Radio & Space Sci, S-43992 Onsala, Sweden

[27] ESA ESAC Gaia SOC, Madrid 28691, Spain

[28] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA

[29] Kyoto Univ, Grad Sch Sci, Dept Astron, Kyoto 6068502, Japan

[30] CEA IRFU SAp, AIM UMR 7158, F-91191 Gif Sur Yvette, France

[31] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[32] European So Observ, D-85748 Garching, Germany

[33] NASA, Goddard Space Flight Ctr, Exoplanets & Stellar Astrophys Lab, Greenbelt, MD 20771 USA

[34] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium

[35] Rutherford Appleton Lab, Didcot OX11 OQL, Oxon, England

[36] Open Univ, Dept Phys & Astron, Milton Keynes MK7 6AA, Bucks, England

来源：

ASTRONOMY & ASTROPHYSICS | 2010年 / 518卷

关键词：

astrochemistry; circumstellar matter; protoplanetary disks; stars: formation; radiative transfer; line: formation; RADIATIVE-TRANSFER; DISK STRUCTURE; MASS STARS; EMISSION; CONTINUUM; ACCRETION; EVOLUTION; DUST;

D O I：

10.1051/0004-6361/201014591

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Herschel GASPS key program is a survey of the gas phase of protoplanetary discs, targeting 240 objects which cover a large range of ages, spectral types, and disc properties. To interpret this large quantity of data and initiate self-consistent analyses of the gas and dust properties of protoplanetary discs, we have combined the capabilities of the radiative transfer code MCFOST with the gas thermal balance and chemistry code ProDiMo to compute a grid of approximate to 300 000 disc models (DENT). We present a comparison of the first Herschel/GASPS line and continuum data with the predictions from the DENT grid of models. Our objective is to test some of the main trends already identified in the DENT grid, as well as to define better empirical diagnostics to estimate the total gas mass of protoplanetary discs. Photospheric UV radiation appears to be the dominant gas-heating mechanism for Herbig stars, whereas UV excess and/or X-rays emission dominates for T Tauri stars. The DENT grid reveals the complexity in the analysis of far-IR lines and the difficulty to invert these observations into physical quantities. The combination of Herschel line observations with continuum data and/or with rotational lines in the (sub-)millimetre regime, in particular CO lines, is required for a detailed characterisation of the physical and chemical properties of circumstellar discs.

引用

页数：5

共 17 条

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